private void giveReviewToolStripMenuItem_Click(object sender, EventArgs e) { var checkNullDatabase = (from ht in db.HeaderTransaction select ht).FirstOrDefault(); if (checkNullDatabase != null) { if (formReview == null) { formReview = new FormReview(); formReview.MdiParent = this; formReview.FormClosed += FormReview_FormClosed; formReview.Show(); } else { formReview.Activate(); } } else { MessageBox.Show("You must do the Laundry First!", "Warning Message!", MessageBoxButtons.OK, MessageBoxIcon.Exclamation); } }
private void FormReview_FormClosed(object sender, FormClosedEventArgs e) { formReview = null; //throw new NotImplementedException(); }